Published in
Cambridge University Press, European Journal of Applied Mathematics, 01(26), p. 93-107
DOI: 10.1017/s0956792514000345
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- [arxiv.org] | PDF
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Elastic director vibrations in nematic liquid crystals
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Abstract
Recently Biscari, DiCarlo and Turzi [Anisotropic wave propagation in nematic liquid crystals, Soft Matter 10, 8296–8307.] proposed a theory for nematoacustics which models nematic liquid crystals as nematic elastomers with molecular relaxation. Here, we extend the analysis of this theory to account for the director motion possibly induced by the propagation of a sound wave. We find that the director vibration is related to the - usually small - anisotropy of the molecular distribution, thus providing a justification to the relative high ultrasonic intensities required to observe non-negligible acousto-optic responses.